Flame Basin is a pocket dimension on the other side of the Dimensional Gap where Surt took up residence after escaping from Midgard. Obsessed with creating a world of his own to dominate, Surt laid himself down on the new land to corrupt it with his own essence. His blood pooled into waterfalls and rivers and his bones piled into dark rocky mountains. His scales crumbled to form bleak forests. The Flame Basin used to be a dead land where nothing could thrive, but Surt turned it into a breeding ground for vile demon creatures.